Morph abilities

So I just read a dota tip at dotacommentaries.com which said that skills like medusa's splitshot (FA's multishot) etc. are morphing spells in dota.
It means that you can, with correct timing, avoid single target spells by toggling such skills off and on.
My understanding is that atleast Wildsouls ulti disjoints spells,
but I've never heard of someone dodging spells with FA's multishot.
So the question is, does this mechanic exist in hon, and if so what heroes can do this?